Organic Pest Control for Gardens (Natural Options)

Katie Wells Avatar

Reading Time: 6 minutes

This post contains affiliate links.

Read my affiliate policy.

how to prevent and control pests in organic gardens
Wellness Mama » Blog » Natural Home » Organic Pest Control for Gardens (Natural Options)

Gardening can be a great way to save money and eat the freshest food available, but it can also come with its fair share of frustrations. From pests to proper watering, there are a lot of factors involved, especially if you are using organic methods to avoid chemicals. Garden pest control is a constant battle in an organic garden but your body (and the environment) will thank you!

Fortunately, there are several ways to wage war against pests without resorting to pesticides. Companion planting, proper spacing, and natural methods of disease and pest control can ensure a healthy garden production without the need for nasty chemicals.

Organic Garden Pest Control: Is It Possible?

Controlling pests in the home garden is possible, but I’ll be honest… it takes some work! Nothing crushes your gardening dreams finding your cabbages chewed to bits overnight.

Step 1: Be Proactive!

Take the time to walk through the garden for 5 minutes every day. This is called “scouting.” Look at the plants, turn over the leaves, and check the soil for signs of any current or potential pest damage — eggs, larvae, chewed leaves, etc.

If you see any signs of damage, act immediately. And yes, if you really want an organic garden, that may mean hand-picking and even squishing bugs. I prefer the soapy bucket approach. If you find adult bugs or larvae that like to munch, remove them (or the leaf any eggs are attached to) and put them in a bucket of soapy water.

While hand-picking bugs and other pests out of the garden isn’t practical for a large-scale problem, if you use the steps for organic pest control above you hopefully will prevent any out-of-control situations.

Frequent and close observation means you’ll be ready with one of the following natural remedies before disaster strikes!

Step 2: Use Companion Planting

organic plant spacing and companion plantingSome plants have natural properties that help others grow and deter pests when planted close by. Making use of these natural properties is a way to increase production in the garden and fit more plants into a smaller space. The following are a few popular companion plants:

  • Basil planted with tomato improves production and flavor. Basil is also good for peppers and has been said to repel mosquitoes. I plant basil throughout the garden for its aroma and beneficial properties.
  • Borage is a great companion for tomatoes and cabbage as it repels both tomato horn worm and cabbage moths. It also helps strawberries and is beneficial to practically everything in the garden. I plant throughout.
  • Chamomile is a great companion for cabbage, cucumbers, onions and all the brassicas. It improves flavor and is a great herb to have on hand. It attracts beneficial insects and has delicate and beautiful flowers.
  • Dill is also great planted with cabbages, cucumbers, lettuce, and more. It improves flavor, helps repel pests, and is useful in making homemade pickles! It can get pretty big so I plant in the middle of cucumber beds. (Don’t plant with tomatoes!)
  • Catnip is another great herb to grow and have on hand. Planted near squash and cucumbers it will repel squash bugs and aphids. Steep the dried leaves in a tea to help sooth the stomach, and spray the tea on plants as a pest control spray!
  • Radishes can be planted throughout the garden and under plants like cucumbers to deter cucumber beetles.
  • Marigolds planted throughout the garden help prevent nematodes and repel pests. They will flower all summer as long as you keep pulling the dead flowers off.
  • Nasturtiums are also great companion flowers to tomatoes, cucumbers, cabbage, and more. The flowers are edible and can be added to salads. They benefit melons and squashes as well.
  • Onions can be planted freely throughout the garden but help keep pests away from cabbages, broccoli, tomatoes, strawberries, peppers, cucumbers, and more. Intercropping a few with all of these plants can greatly reduce garden pests.
  • Sunflowers are great companions and beautiful throughout the garden. Plant with cucumbers, beans, and vining plants to provide a trellis. They are hardy and a great trap crop for aphids and other pests. They typically produce plenty of their own seeds to use next year.

There are many other great companion plants. Check out this chart for some other ideas.

Step 3: Use Plant-Based Natural Insect and Pest Repellants

how to keep garden pests away naturallyCompanion planting is helpful, but if you’ve already planted and are having trouble with pests, some other natural solutions can be helpful:

  • A tea or solution made from powdered kelp will help deter Japanese beetles and aphids and is also nourishing to plants. Spray once a week or so before and during infestation times.
  • A garlic and hot pepper spray (see recipe below) repels many garden insects and wildlife pests. It is probably the most inexpensive option to make at home and isn’t harmful to you while applying. Use once a week or more for several weeks before and during infestation times.
  • A tea made with lemon balm repels squash bugs and aphids. Apply 2 or more times a week as needed.
  • A solution of several teaspoons of baking soda dissolved in water can help prevent and treat fungus and powdery mildew on plants. Use as a preventative and acute treatment as needed.
  • Powdered diatomaceous earth is a good all-purpose prevention and treatment for any insect pest, but use with caution as it kills indiscriminately. I use DE mainly if I see slugs or larvae of any insect on plants, as it is especially effective on these. Just sprinkle on plants as needed and reapply after watering or rain. (Note: I buy food-grade DE and also use it for indoor pests like ants and as an internal cleanse for parasites in humans and animals. This is the brand we use.)
  • Neem sprays are an increasingly popular pest control option and are available in many stores now.

Hot Pepper Garden Pest Spray Recipe

This is my go-to homemade garden pest control spray and it works really well!



  • Put garlic, peppers, oil, soap, and water in a blender and blend on high for several minutes.
  • Leave in a bowl or pitcher overnight or for at least 12 hours to intensify the effects of the garlic and peppers.
  • Strain through towel, cheesecloth, or strainer and store in a glass jar.
  • To use, pour about 2 TBSP in a 16 ounce spray bottle (or 3 TBSP in a 24 ounce) and shake well.
  • Spray directly on plants as needed… I recommend wearing gloves!
  • Use as often as needed for preventative and pest-controlling effects.

If you don’t want to make your own they do make store-bought natural pepper sprays but I prefer the homemade version to avoid the paraffin wax they contain (made from petroleum). That said, it’s still better than spraying your garden with pesticides! Just be sure to wash produce well and also use a vegetable wash.

Step 4: Help Plants Stay Healthy by Fertilizing

Strong plants resist pests more easily too, so growing strong and healthy plants is an important step in protecting your garden from pests.

  • Kelp tea is not only a great way to naturally control garden pests, it is also a great foliar spray that nourishes plants when sprayed on the leaves (just don’t spray during the heat of the day). Sprinkling powdered kelp around plants can also have a nourishing effect.
  • Nettle tea is another plant-nourishing option to spray on plants, or add dried nettle leaf directly to the soil or compost.
  • Yarrow flowers can be made into a tea or liquid mixture and used to water plants for extra nutrients. You can also just sprinkle yarrow flowers throughout the garden and they are said to have a pest-repelling effect also.
  • Fish emulsion is a natural fertilizer that can be sprayed on the leaves of plants to help promote growth. It is especially good for tomatoes. It smells awful but is very effective!
  • Bone and blood meal (like this) are high in nitrogen and very fertilizing to plants. They are also somewhat controversial since they are animal products. Organic options are available and can be great if you are comfortable using them.

Step 5: Use Row Cover

Many flying pests see your garden as their ideal egg-laying station! Keep moths and other bugs from landing on your plants by using row covers. Floating row covers (basically fabric stretched over wire hoops) let light and water through but keep out pests who want to snack on devour your precious produce.

Row covers are quite practical in small gardens and even extend the growing season a bit. It isn’t necessary to cover everything, but particularly vulnerable crops like potatoes, squash, and cabbage will benefit.

Do you garden organically? What are your best tips and tricks for garden pest control?

Preventing bugs, insects, and other pests in an organic garden is a chore. Here's some natural ways to help keep them at bay.

Katie Wells Avatar

About Katie Wells

Katie Wells, CTNC, MCHC, Founder of Wellness Mama and Co-founder of Wellnesse, has a background in research, journalism, and nutrition. As a mom of six, she turned to research and took health into her own hands to find answers to her health problems. is the culmination of her thousands of hours of research and all posts are medically reviewed and verified by the Wellness Mama research team. Katie is also the author of the bestselling books The Wellness Mama Cookbook and The Wellness Mama 5-Step Lifestyle Detox.


61 responses to “Organic Pest Control for Gardens (Natural Options)”

  1. Tammy Avatar

    Katie or anyone else, Do you have experience using mosquito bits for a gnat infestation? It has been recommended in a lot of gardening sites and says it’s non-toxic but I would like to get other opinions.

  2. Teressa Avatar

    Hi. I’m dealing with a bad Japanese Beetle infestation on my apple tree and grapevine.

    I read that apple cider vinegar would kill them, so took a few cups out to sprinkle on them… or drop them into to kill.

    I ended up leaving the partially filled cups of vinegar on the porch for a few hours… when I came back to clean up (and spray some neem oil product – which works great, by the way)… and the beetles were kamikazing into the cups!!!

    Now the cups are full of dead beetles!

    Have you ever heard of them doing this before??? (I can share pics if possible)

    I am going to make a beetle trap for them with apple cider vinegar… so I hope this works and helps someone else too! These beetles are super destructive and ANNOYING!


  3. Candace Avatar

    Will spirulina powder work as well as as kelp? Only because I have a whole bag of spirulina…!
    Thank you!

  4. Jan St Anne Avatar
    Jan St Anne

    I have 6 peach trees and 4 pecan trees. I live in the country and there are lots of squirrels that attack the trees. They chew on the peaches and drop them down on the ground. They take the pecans and leave none for me. I don’t kill the squirrels and have tried many things to discourage them, but to no avail. Any ideas for me?

  5. Richelle Avatar

    Thanks for the great tips! I love companion gardening. I have heard that neem might kill bees.. might be worth looking into..

  6. Fiona Avatar

    I have also used Great Horsetail…that invasive weed that is so pretty….as a fungicide.
    I boil it up in a large kettle, let it steep for a while, strain and then spray on affected plants. The actual boiled plants I spread between rows or round roses to ward off fungus and mold.

  7. Debra Avatar

    Great readings , I too use many flowers to encourage growth of the vegetables and to deter pests, been oil is good mixed with a mild soap like ivory and a tsp of oil, I’ve found that worm castings are superior for soil quality and food production. Also I feed my tomatoes and pepper plants only fish emulsion and Epsom salt, I started all my plants by seed indoors and they are fed this and ate now 7 ft tall and loaded with fruit.another top is to save your banana peels, put them in a container of water, let sit for 3 days, water your plants with this, high course of potassium, plants need this and magnesium, it is not readily found in our soil, they need vitiams and no deals as we do..

  8. Cathy Avatar

    I have a ton of lemon balm in my garden, so I am intrigued about using it to deter squash pests. Do I just steep a bunch of it in water and spray it rather than buying the tea bags? I’d love to try this. My cukes and zukes are just starting to come out.

  9. Lisa Avatar

    What about keeping deer away? My husband doesn’t want a garden because we have deer visiting our yard sometimes.

    1. Candace Avatar

      Try a ScareCrow Motion Activated Animal Repellent. You hook it up to a hose, and it uses a battery for the motion sensor. When a deer comes around, it sends out a plume of water for about 3 seconds – enough to scare the deer away and not hurt a thing! It has worked great for keeping all my hostas safe – otherwise it was open salad bar!! Just make sure you turn it off when YOU are around!!

  10. George Avatar

    Great post about how to prevent and control pest in garden with help of basil. Thank you for recommendation!

  11. Cosette Avatar

    In your post about remineralizing your teeth and the body being able to absorb nutrients, wouldn’t blood and bone meal, especially the one you suggested, create the issue of high phosphoric foods?

  12. Dorothy Miller Avatar
    Dorothy Miller

    I would caution anyone making the pepper spray to add the liquid soap AFTER blending the other ingredients. I do not have a Vitamix, but my Oster blender is quite powerful. I had my hand on the lid when I started the blender, but it still blew the lid off, and I was able to switch it off quickly. So I thought, “maybe if I take half the ingredients out, it won’t blow off”. Should have thought again. This time it blew the lid off again, spraying my face. My daughter led me, blinded, to the shower where i stripped and rinsed in cold water. My face is still burning as I type. Aloe is helping. Perhaps the 5 cup carafe was too small. Next time, I’ll blend the garlic, oil, and water, grind peppers in the coffee mill and add, them, along with the dish soap to the water mixture. I hope this will have been worth the burns and effort to keep the bean and flea beetles away!

  13. Michele Avatar

    Can you tell me how you make kelp tea and where does one find powered kelp?

  14. Tiffany Avatar

    How do I prevent cut worms from eating into the stems of my zucchini and summer squash plants? I have had this issue over the past few years.

  15. Terry Avatar

    We have a big ant hill in our garden. Would the Diatomaceous earth work? Thanks.

  16. Emily Avatar

    Our biggest pest are slugs. Any of these work well for them? I think I’ll try the pepper spray. We already do ground eggshells and a salt pellet.

  17. Melissa Avatar

    Any tricks for keeping tomato worms off the tomatoes? We get them every year. They creep me out and chew off all the leaves of the tomatoes if you let them!

  18. Dave Sherva Avatar
    Dave Sherva

    Great post! Was wondering if you have ever used praying mantis in the garden. I live in Minnesota and hatched my first egg case in the garden. What blast it’s been watching them grow and they make a great conversation piece. Have a great day!

  19. carol Avatar

    can I spray any plants with garlic will it make difference to flavour of veg I am growing

  20. Samantha Avatar

    Hi, the leaves on my tamato tree has dried up and I noticed white line on the leaves. Can you tell me how I can prevent this and what is the cause. Thank you.

Leave a Reply

Your email address will not be published. Required fields are marked *